Is it happening at the beginning of the game before you choose a class? I had crippling save times while I was setting up the MCM. When I took a peek at my save with ReSaver, I found Classic Classes was VERY aggressively (98k frames) waiting for me to equip a spell or weapon. After loading the save and equipping a spell, choosing my class and birthsign, there were a few seconds of lag (probably cleaning up those scripts), my save time went from 30+ seconds with about a 1/2 failure rate, to split-second saving.